Guys

I have a question about timer events and their atomicity in slave
interpreters.

Assume that I do the following:
interp create slave
slave eval after 1000 proc_foo   # proc foo does some work and repeats the
after 1000 proc_foo at the end to repeat

slave eval set  i 0
slave eval puts $i
slave eval set  i 0
slave eval puts $i
...

My question is, when the proc_foo is called, does it execute to completion
before any of my subsequent statements get executed or my subsequent
statements are interleaved with the statements of proc_foo?

We are seeing a problem with interleaving because one can set the variable
in the context of proc_foo and then try to get the variable "i" outside the
context and one gets "variable not found error".

So in slave interpreters, are timer callbacks executed "atomically"?

We are seeing that it is not using ActiveState Tcl 8.4.19.2 threaded
distribution. The documentation does not clearly state what will happen in
this case.
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